Gas-engine condenser.



N0.-s25,92s. I V 4 PATBNTED JULY 17, 1906.

L. J. MONAHAN.

GAS ENGINE CONDENSER.

APPLICATION FILED OUT. 23. 1905.

, VII/E8858: INVENTO'R I W e UNITED srnrnsrnrnnr oFFIGE.

LOUIS J. MoNAHnn or OSHKOSH, Wisconsin, ASSIGNOR TO TERMAAT & MONAHAN 00,, or OSHKOSH, ,WISGONSIN.

GAS-ENGINE CONDENSER Specification of Letters Patent..

Patented July 17,1906.

. A'ppliostionfilerl October 22.1905. SeriaiNo-288,947.

. engines.

- fice of keepin the-exhaust-pipes cool, as Well ally with the sai p The object of the invention is to provide a neateappearing attachment to the cylinder of explosive-engines-Which will perform the of= as coolin an condensing the burned gases A furt er object is to provide a means for. relieving the cylinder of back pressure during the exhaust-stroke of the, engine. i

In the drawings, Figure 1 s a sectional view of an en ine-c linder With thecondensenattache -"the atter being in partse'ction.- Fi. 2 is a sectional view ofthe con-a denser, s owing' the general arrangement. Figi 3 isan outside view of same. J j.

eif'erring to the drawin s, the numeral 1 represents the casing or she let thecondenser v or mufiier. 2 IS an opening for the-entrance of the exhaust gases. and has a projecting part or boss 3 around the opening for the purpose of holding packing between same and the cylinder or object it isbolted to; i l A ort or pasedge 4; is arranged on top of t e shell, as shown, for the passage of water, and this chamber or passage is of suflicient area to admitthe passage of all of the discharge-water from the cylinder. An ironpipe 5 is screwed into the upper wall of the shell, as shown, with opening through into the water-passage on to This pipe has one or a number of small oles (i-drilled. therethrough, as shown, for the escape of a portion of the water descending through the pipe. At the bottom of the shell a lar e hole is tapped in line axi- 'pe, and a pipe-or nip 1e 7 is screwed therein. f This nipple has a iiarge enough internal diameter to receive the pipe 5 loosely, as shown, and on the lower end of the nipple 7 a pipe, L, or other suitable cou ling or connection can be made for the disc iarge-water. The pipe 5 is of suiiicient length to extend ashort distance into the nip the middle through the therein before escaping through the out vice; but this is not absolutely necessary. A large hole 8 is tapped in one side toward the top of the condenser or mufller for the escape of the exhaust-gases and is of sufiicient size for the eflicien-t working of the engine immediately connected.

Suitable means can be provided for holding the condenser to the engine-cylinder; but I prefer the method here shown-viz, by securing-the upper or top end to the cylinder by means of screws through the ears 9 and art by tap-bolts 10, passing lioles 11. Suitable water-tight packing can be placed between the cylinder and condenser around the said openings.

. In Fig. 1 a cylinder 12 is'shown and the method of'attaching. The cylinder shown is 0% the .ordinary two-cycle type and having a water-outlet at its top and made of a shape to conform with the shape of the condenser at this point to resent a neat appearance and bring the con enser close to the cylinder.

The operation is as follows: Exhaust-gases -from. the cylinder, as shown by the long arrows, pass into the condenser and expand et 8. The discharge-water from thecylinder enters the passage 4 and flows down through the lqwer connections at the bottom. A small portion of the water escapes through the small holes of the said pipe 5. This escaping water enters the condenser in the form of a spray and evaporates and passes out with the exhaust-gases in the form of steam and cools the gases, and consequently cools thapipes and other passages for the exhaust-gases. Any excess or" water that may enter the large chamber that is not evaporated'into steam will drop to the bottom and can run but through the nipple 7 or around the pipe 5 at the bottom, as shown by the space between the pipe 5 and nip le 7, thus doing away with any flooding Wit water. This system of cooling by s "raying water in with the exhaust-gases as the effect of mufiling the noise of the exhaust on account of decreasing its volume before it reaches the escape end of the pipe. gine to provide for the immediate escape of the exhau'stases in a comparatively in e volume, for t e reason that the whole of t e exhaust must escape while the pistonis at one end of the stroke and while the port is uncovered. It is evident, then, that with a It is necessary in a two-cycle en sfnall pipe-close to the cylinder the gases cannot escape at su'tlieient- Velocity to empty the cylinder, and this isalso the case Where i the end of the exhaust-pipe is obstructed by 5 placing it under Water. A very important feature of thisdevice is that by virtue of its large'volumetric capacity the gases can escape thereinto regardless of the nature of the attached pipes or obstructions and the slow r'o escape of the'gases can takefplace from the j condenser. this particular form and shapeo'f condenser,

as many other forms or shapes Will readily su est-themselves.

r5 1 at I claim, and desire to 'secure by 'Letters Patent,,is v

1. In ,a condenser or ,mufller'for explosivevengines, a chamber of suitable form to be attached to and supported by an engine-cylin 2o der and having a comparatively large volumet'ricpapacity, an opening thereinto for the entry of exhaust-gases, another opening for the exit of the exhaust-gases, a Water-passage arranged at the :upper end of the condenserv and extending downward through the condenser for the passage of Water, the downward-extending passage having a suitable number of small holes therethrough and .a

' :large opening at the bottom. o 2. A condenser for eXplosiye-engines comprising a chamber-having openings for the i passage of eXhaust-gasesa water-conduit arranged vertically through the said chamber and having means at thetop for receiving the 3 5 discharge-water from the said engine-cylinder, one 01' moresmallholes or openings arrangedin the said vertical Water-conduit, and a larger opening in the bottom. thereof, there being aihole or opening in the bottom of 40 the above-said condenser-chamber arrangel under or aroundthe said Water-conduit substantially as described.

3. A condenser for explosive-engines COIriprising an outer shell with suitable sized open- I do not Wish to belimited to ings therethrough for the passage of exhaustgases, a pipe arranged vertically Within the said shell and screwedinto the top thereof, the said pipe having a suitable number of small holes drilled therethrough for the pasof Water, a hole in the bottom of the said shell and of larger diameter than the said pi 3 and arranged axially -with the said pipe for the purpose specified.

4. In a condenser or mutl'ler for explosiveengines an outer chamber oi com paratively large volume and of rectangular section, one

side having an opening about midway of its length and another opening on the same side but near the top and of smaller area, a pipe or passage communicating with the :last-said smaller opening and extending downward and havingthe lower end extending through the bottom of the outer chamber, ,a pipe c0nnection or other suitable receptacle fitted to the bottom. of the outer chamber and of larger area thanthe said-pipe or passage and surrounding the lower end of the pipe orp assage, l

5. A condenser or muffler it'orex'plosive-engines comprising a chamber andadapted to be secured to an engine-cylinder so the ex haustgases Will pass into same andithe dischargeater enter at the top,-fiat surfaces on one side for holding packing around openings therein, and means vfor conducting the water down through the centerthrough a separate pipe or passage, means forallowing aportion of the Water to, eseapeiathreugh-the sides of the pipe or passage, and means 'fonallowing any surplus Water-toescape throughthe bottom of the said chamber.

In testimony whereof I hereby set my hand in the presence of the Witnesses.

LOUIS J. MONAHAN. 

